Ball plug setting tool



p 1953 E. T. GlLDA 2,652,733

7 BALL PLUG SETTING TOOI..

Filed Aug. 25, 1950 ALA r INVENTOR. EDWARD T. GILDA ATTORNEY from a stock of these parts.

Patented Sept. 22, 1953 2,652,733 BALL PLUG SETTING TOOL Edward T. Gilda, St. Louis, Mo., assignor to Car- V ter Carburetor Corporation, St. Louis, Mo., a

corporation of Delaware Application August 23, 1950, Serial No. 81,o6o

' i Claim. (c. 7s 6o) This invention relates to tools for setting ball plugs in the ends of passages, for instance, in carburetors. j

The passages of carburetors must be drilled through an outer surface and, frequently, closed by a plug, usually a ball plug. These plugs are small and the handling thereof, including guiding the plug into the end of its passage and setting the same, is, accordingly, difiicult.

The main object of the present invention is to provide a tool which will select a ball from a stock thereof, stably hold the same while being guided into the end of a passage or orifice to be plugged, and direct a blow of a hammer against the ball for setting the same.

Another object is to provide a tool which in addition to guiding and setting the ball, will lock the same in position.

These objects and other more detailed objects hereafter appearing are attained by the device illustrated in the accompanying drawing in which:

Fig. 1 is a longitudinal section through the tool, showing a ball plug in position to be set.

Fig. 2 shows the plunger at the end of its ball driving stroke.

Fig. 3 is an enlarged, detail section showing the ball receiving end of the tool applied to a passage to be plugged.

Fig. 4 is a similar view, but showing the ball driven into position.

Fig. 5 is a detail section similar to Figs. 3 and 4 but showing a modification.

Fig. 6 is a section similar to Fig. 5, but showing the ball plug driven into position.

The tool comprises a tubular handle sleeve 8 having a central bore 9 slidably receiving a plunger member H) with a reducecl portion I i working in a similarly reduced portion !2 of the handle bore. A coiled spring !3, compressed between the handle and plunger, urges the plunger toward the right, but this movement is limited by a set screw !4 on the plunger which engages the edge of a slot !5 in the handle member. In the normal, rest position of the tool, the inner end !6 of the plunger, as best seen in Fig. 3, is positioned inwardly of the corresponding end of the handle member, a distance slightly less than the diameter of the bore of the handle member at this end, but greater than the radius of the bore to form a cup for stably receiving a ball plug !9. The end of the handle member has a tapered outer surface as at 20, to facilitate the guiding of a plug into the pocket The plunger, at its outer end, is provided with a head 2! which, in

. 2 the rest position as in Figs. 1 and 3, is spaced from the corresponding end 22 of the handle member, a, distance approximately the same as the depth of plunger end 16 within the handle member, as just described.

Plunger n is permanently magnetized so that a metallic ball will adhere thereto.

In operation of this form of the invention, the tool is thrust into a stock of ball plugs, whereupon one of the plugs will adhere thereto, as in the figures. The ball will be stably held within the small cup formed at the tapered end of the tool, more than half thereof being within the cup, so as to be readily guided on the surface of the work and into the end of the passage to be plugged without the danger of the ball rolling or being forced from its position on the tool. The tool is then held properly angled with relation to the work and the head 2! given a sharp blow with a hammer to set the ball. The engagement of the head with the corresponding end 22 of the handle member, insures proper setting of the ball, as shown in Fig. 4. While this ball projects slightly, it may be set flush with the surrounding surface by constructing the plunger so as to be flush with the end of the handle sleeve at the end of the driving stroke.

In Figs. 5 and 6, the bore at the end of the tool is made of somewhat greater diameter than the ball it is intended to receive and a depression 24, shaped as a portion of the surface of a sphe'e, is formed in the end of plunger ma. As in the previous form, the projecting portion of ball !Qa may be guided into a passage to be plugged and the plunger thereupon given a sharp blow. In this form, the head at the outer end of the plunger is spaced somewhat farther from the end of the handle member, than in the first form, so that at the end of the plug setting stroke, the plunger will protrude slightly beyond the end of the handle member, as at 25. Being somewhat wider than the ball and its receiving passage, the plunger will strike the periphery of the ball receiving passage somewhat upsetting the metal, as indicated at 26, to securely lock the ball in position. The same function may be served using the first form by making the forward tip of the handle member suiciently small and by giving the outer end of the plunger a hard enough blow to cause the end of the handle member to slightly upset the metal about the plug orifice.

The exclusive use of all modifications as come within the scope of the appended claims is contemplated.

I claim:

A ball plug guiding and setting tool comprising a body with an elongated, longitudnal bore and a first tapered end, a magnetized plunger slidable in said bore, said plunger having a diameter greater than the diameter of a ball plug and having a spherical recess in its end eorresponding to the curvature of the plug, a spring; strssed between said body and said plunger and urging said plunger in the direction to draw one end m Number thereof within said tapered end of said handle, stops on said body and said plunge limiting the spring produced movementthereof to. a. rest, position with said mentioned enti; of: said phnger a distance inside said bore less than the diameter l thereof to form a cup forstably receivng a ball plug from a stock into which the tool is directed, the other end of said plunger projeoting op postely from said body a distance slightly great er than the diameter of said bore and a houlder on said oppositely proj'ecting end; of said plunger for striking the ad'iacent end of' said body to limit the plug setting stroke; of said plunger to thereby limit the most advanced po 4 sition of said plunger in the plug setting direction to a position slightly beyond the tapered end of said body for first setting the received ball plug and then swaging the edge of the plug receiving opening to secure the plug in position.

EDWARD T. GILDA.

References: Cted in the file of this patent 'UNITED 'STATES PATENTS Name Date %18,612 Sharp May 29, 1883 489,020 Lehmann Jan. 3, 1893 512381 Keyes Jan. 9, 1894 i &55,735 Tr'acy June 4, 1907 15332110 Koons June 21, 1927 1316545 Wilson Sept. 23, 1930 1,808,452 Cousins June 2, 1931 1 *,956-,634 Watson May 1, 1934 2,438,642 Martin Mar. 30, 1948 FOREIGN PATENTS Number Country Date 592.129 Great, Britain Sept. 9., 1947 

